315215190 has 72 divisors (see below), whose sum is σ = 870676560. Its totient is φ = 79106304.

The previous prime is 315215179. The next prime is 315215203. The reversal of 315215190 is 91512513.

315215190 is a `hidden beast` number, since 3 + 1 + 521 + 51 + 90 = 666.

It is a super-2 number, since 2×315215190² = 198721232013472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19951 + ... + 32069.

It is an arithmetic number, because the mean of its divisors is an integer number (12092730).

Almost surely, 2^315215190 is an apocalyptic number.

315215190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 315215190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435338280).

315215190 is an abundant number, since it is smaller than the sum of its proper divisors (555461370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315215190 is a wasteful number, since it uses less digits than its factorization.

315215190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12166 (or 12146 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 315215190 is about 17754.3006057687. The cubic root of 315215190 is about 680.5641152245.

The spelling of 315215190 in words is "three hundred fifteen million, two hundred fifteen thousand, one hundred ninety".